Article
Engineering, Environmental
Carlos Dante Gamarra-Guere, Dawany Dionisio, Gessica Oliveira Santiago Santos, Marcos Roberto Vasconcelos Lanza, Artur de Jesus Motheo
Summary: Endocrine disruptors, such as MeP, are persistent pollutants in aquatic ecosystems. Among various advanced oxidation processes, electro-Fenton was found to be the most effective method for degrading MeP efficiently and quickly, outperforming other alternatives.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
I Salmeron, I Oller, S. Malato
Summary: In the past two decades, the application of electrochemical processes for wastewater treatment has significantly increased. However, most studies have focused on lab-scale systems testing. This study aims to evaluate the performance of electrochemical treatments in actual matrices, showing higher degradation rates in more complex and saline matrices.
Article
Engineering, Environmental
W. Remache, D. R. Ramos, L. Mammeri, H. Boucheloukh, Z. Marin, S. Belaidi, T. Sehili, J. A. Santaballa, M. Canle
Summary: The degradation of aqueous propranolol in a heterogeneous system with natural iron oxide and oxalic acid under near UV-Vis irradiation is investigated. The results show that the photocatalytic system is effective in removing the pollutant and the mechanism involves the formation of hydroxyl radicals.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Review
Biochemistry & Molecular Biology
Christian Schoneich
Summary: This article summarizes recent analytical and mechanistic work on the reactions of therapeutic proteins under light exposure, particularly in relation to protein modification under visible light. It suggests that these processes may be triggered by a ligand to metal charge transfer in excipient-metal complexes.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Engineering, Environmental
Allisson Barros de Souza, Joerg Mielcke, Izba Ali, Raf Dewil, Tom van de Goor, Deirdre Cabooter
Summary: This study examined the degradation of miconazole (MCZ) in water using ozone, photodegradation, and electrochemical processes. The results showed that MCZ can be efficiently removed by ozonation (98%) and electrochemical processes (94%). Matrix effects were observed in simulated wastewater, and the formation mechanism and ecological toxicity of degradation by-products were studied. Moreover, the automated online sampling technology provided a diagnostic tool for real-time process monitoring during water treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Engineering, Environmental
Yangxian Liu, Shuo Shi, Yan Wang
Summary: Removal of pollutants from gas streams using Fenton-like oxidation systems has gained attention for its promising multi-pollutant removal capability. However, challenges like metal ion recovery, low radical utilization, and system stability remain to be addressed. Strategies like catalyst synthesis, mass transfer enhancement, and reactor optimization are proposed to overcome the existing defects and improve the efficiency of these technologies.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Nonglak Boonrattanakij, Suppakarn Kruthom, Ming-Chun Lu
Summary: This study successfully removed wastewater containing the insecticide IMI using a fluidized-bed Fenton process, achieving a degradation efficiency of 97% for IMI under specific conditions. Bed expansion did not significantly affect IMI degradation but slightly deteriorated total iron removal performance.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Review
Chemistry, Physical
Puthiya Veetil Nidheesh, Clement Trellu, Hugo Olvera Vargas, Emmanuel Mousset, Soliu Oladejo Ganiyu, Mehmet A. Oturan
Summary: Combination of electro-Fenton process with other advanced oxidation processes is effective for water and wastewater treatment. These combined processes can enhance the mineralization efficiency and reduce operational cost and toxicity of treated wastewater. However, they also present challenges such as increased side reactions and energy requirements.
CURRENT OPINION IN ELECTROCHEMISTRY
(2023)
Review
Environmental Sciences
Enric Brillas
Summary: Ibuprofen is a widely prescribed drug with potential harmful effects on human health, as it can be found in various types of wastewater and drinking water. Conventional treatments are inefficient in removing IBP, leading to the development of advanced oxidation processes to mitigate its impact.
Article
Engineering, Environmental
Sunil Ghatge, Youri Yang, Yongseok Ko, Younggun Yoon, Jae-Hyung Ahn, Jeong Jun Kim, Hor-Gil Hur
Summary: The highly recalcitrant PE plastics can be efficiently degraded with small organic acids produced using novel Bio-Fenton and Bio-Photo-Fenton reactions. The TiO2-GOx reaction under UV radiation resulted in significantly higher release of organic acids compared to free GOx reaction.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Physical
Nan Dai, Lei Yang, Xinyi Liu, Lihong Gao, Jishu Zheng, Kai Zhang, Dan Song, Tao Sun, Shaoyue Luo, Xiaoying Liu, Song Tang, Yuxin Zhang
Summary: This work prepared manganese-doped cobalt silicate@diatomite composites, and used them for the degradation of methyl orange dyes. The experiments showed that manganese doping increased the specific surface area of the samples and decreased the band gap energy of the materials. Moreover, the samples doped with manganese elements had better photo-Fenton-like properties.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Environmental Sciences
Viet Van Pham, Ha Phuong Phan La, Tam Quoc Le, Phuong Hoang Nguyen, Tan Van Le, Thi Minh Cao
Summary: In this study, Fe2O3/diatomite material system was used for the photo-Fenton removal of ciprofloxacin in water under visible light excitation. The Fe2O3/diatomite catalysts were characterized by various techniques, and the removal efficiency of ciprofloxacin was evaluated by the effect of H2O2 with different parameters. The results showed that the 0.2 g/L Fe2O3/diatomite catalyst achieved the highest removal efficiency of approximately 90.03% with a 50 μL H2O2 concentration. The Fe2O3/diatomite catalysts also exhibited high stability, with over 80% ciprofloxacin removed after five cycles. This study provides insights into the development of potential materials for the photo-Fenton degradation of antibiotics in wastewater.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Analytical
Fathellah Laghrib, Mina Bakasse, Sara Lahrich, Moulay Abderrahim El Mhammedi
Summary: Water pollution, particularly the presence of azo dyes pollutants, is a global issue that needs to be addressed in water resources policies. Efforts in developing green chemical processes and wastewater treatment technologies have been made by the scientific community in recent years. Advanced oxidation processes, such as Fenton's reagent, are effective treatments for water purification and reuse, with novel methods like photo-electro-Fenton showing promising results.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2021)
Review
Environmental Sciences
Mohd Salim Mahtab, Izharul Haq Farooqi, Anwar Khursheed
Summary: This review focuses on the restrictions of the classical Fenton process and recent approaches to overcome these limitations, with a special emphasis on Fenton sludge reuse systems as a sustainable approach. Sludge reuse systems without regeneration, with optimized addition of reagents dosage, are highlighted as the most effective treatment method.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Electrochemistry
Nihal Oturan, Jiang Bo, Clement Trellu, Mehmet A. Oturan
Summary: Electrochemical advanced oxidation processes (EAOPs) are developed for effective destruction of recalcitrant organic pollutants, where the choice of electrode materials plays a crucial role in process efficiency. This study compares the performance of ten electrodes in the removal of the antibiotic p-aminosalicylic acid (p-ASA), highlighting the significant impact of oxidative degradation kinetics and mineralization rate on performance.
Article
Engineering, Environmental
Helene Monteil, Yoan Pechaud, Nihal Oturan, Clement Trellu, Mehmet A. Oturan
Summary: This study aimed to develop and characterize a new pilot-scale reactor using BDD anode and carbon felt cathode operating in continuous mode, and successfully achieved high mineralization rates. Experimental results showed that liquid flow rate and reactor configuration were crucial for reactor performance, and a new mathematical model successfully captured the trends in experimental data.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Zahra Heidari, Rasool Pelalak, Reza Alizadeh, Nihal Oturan, Saeed Shirazian, Mehmet A. Oturan
Summary: This study investigated the potential use of novel iron-based mineral catalysts for electrocatalytic oxidation of refractory contaminants. Chalcopyrite showed the highest efficiency in degrading the antibiotic cefazolin, and remained stable and reusable after consecutive runs. Iron-based mineral catalysts, especially chalcopyrite, were found to be a cost-effective alternative due to their high catalytic activity, availability, eco-friendly nature and low energy consumption.
Review
Chemistry, Physical
Soliu Oladejo Ganiyu, Carlos A. Martinez-Huitle, Mehmet A. Oturan
Summary: The knowledge of electrochemical advanced oxidation processes (EAOPs) mechanisms has evolved over the past three decades, aided by advances in analytical and spectrometric techniques. The type, nature, and quantity of reactive species generated in EAOPs are controlled by various factors, and their accurate identification is crucial for understanding their reactivity. The potency and reactivity of oxidants generated in EAOPs are similar regardless of the technique used, except in the case of heterogeneous and homogeneous hydroxyl radicals.
CURRENT OPINION IN ELECTROCHEMISTRY
(2021)
Review
Chemistry, Physical
Emmanuel Mousset, Clement Trellu, Hugo Olvera-Vargas, Yoan Pechaud, Florence Fourcade, Mehmet A. Oturan
Summary: Implementing bioprocesses for wastewater treatment is cost-effective, but many effluents contain biorecalcitrant organic pollutants, necessitating advanced physicochemical treatments. Electrochemical processes can effectively remove xenobiotic compounds from effluent, but high energy is required for complete mineralization. Combining electrochemical processes with biotechnologies shows promise for treating organic biorecalcitrant compounds in wastewater.
CURRENT OPINION IN ELECTROCHEMISTRY
(2021)
Review
Materials Science, Multidisciplinary
Mehmet A. Oturan
Summary: The Electro-Fenton process is an effective method for removing organic pollutants in water, with its efficiency depending on the production rate of H2O2 and the anode material. The use of BDD film electrode in this process can significantly enhance its effectiveness.
CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE
(2021)
Article
Electrochemistry
Laysa R. D. Brito, Soliu O. Ganiyu, Elisama V. dos Santos, Mehmet A. Oturan, Carlos A. Martinez-Huitle
Summary: Antibiotics are commonly detected in aquatic environments and are difficult to remove in sewage treatment plants. Electrochemical technologies, particularly using boron doped diamond (BDD) and carbon felt (CF) as anode and cathode materials, have shown to be effective in degrading antibiotics. Increasing applied current density can improve degradation efficiency.
ELECTROCHIMICA ACTA
(2021)
Article
Electrochemistry
Clement Trellu, Maxim Gibert-Vilas, Yoan Pechaud, Nihal Oturan, Mehmet A. Oturan
Summary: The electro-Fenton process is a promising technology for the regeneration of activated carbon, with the use of AC fiber presenting crucial advantages. By adjusting operating conditions, a regeneration yield of up to 88% can be achieved. The oxidation in the solution helps to continuously desorb organic compounds for effective regeneration.
ELECTROCHIMICA ACTA
(2021)
Article
Environmental Sciences
Coumba Gueye, Jean-Jacques Aaron, Mame Diabou Gaye-Seye, Lamine Cisse, Nihal Oturan, Mehmet A. Oturan
Summary: A spectrofluorimetric method was developed for the determination of beta-blocker pindolol, with successful measurement in different solvents and aqueous media. The addition of cyclodextrins was found to enhance the fluorescence of pindolol, and the method was successfully applied to the analysis of water samples.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Analytical
Fatima Ezzahra Titchou, Hicham Zazou, Hanane Afanga, Jamila El Gaayda, Rachid Ait Akbour, Mohamed Hamdani, Mehmet A. Oturan
Summary: This study investigated the degradation and mineralization of dye Direct Red 23 by the electro-Fenton process using BDD and DSA anodes and a CG cathode. The results showed that the best treatment efficiencies were achieved in sulfate medium, with higher TOC removal and lower energy consumption. By combining Na2SO4 and NaCl salts as supporting electrolytes, the mineralization rate of DR23 solution and current efficiency were further increased.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Electrochemistry
Nihal Oturan, Jiang Bo, Clement Trellu, Mehmet A. Oturan
Summary: Electrochemical advanced oxidation processes (EAOPs) are developed for effective destruction of recalcitrant organic pollutants, where the choice of electrode materials plays a crucial role in process efficiency. This study compares the performance of ten electrodes in the removal of the antibiotic p-aminosalicylic acid (p-ASA), highlighting the significant impact of oxidative degradation kinetics and mineralization rate on performance.
Article
Environmental Sciences
Weilu Yang, Minghua Zhou, Lei Mai, Huase Ou, Nihal Oturan, Mehmet A. Oturan, Eddy Y. Zeng
Summary: In this study, metal-free electrochemical advanced oxidation processes (EAOPs) were developed using nitrogen and sulfur co-doped electrochemically exfoliated graphene catalysts. These catalysts showed excellent performance in efficiently removing organic substances and had a broader range of solution pH values, making them suitable for wastewater treatment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Chemical
Moussa Mbaye, Pape Abdoulaye Diaw, Olivier Maurice Aly Mbaye, Nihal Oturan, Mame Diabou Gaye Seye, Clement Trellu, Atanasse Coly, Alphonse Tine, Jean-Jacques Aaron, Mehmet A. Oturan
Summary: The electro-Fenton process was used to efficiently degrade and mineralize the fungicide thiram, with the study finding that using a BDD anode resulted in higher mineralization efficiency compared to a Pt anode, leading to almost complete removal of organic carbon from the thiram solution.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Review
Chemistry, Physical
Ansaf Karim, Puthiya Veetil Nidheesh, Mehmet A. Oturan
Summary: Electrochemical advanced oxidation processes provide a promising means for the mineralization of persistent organic compounds, transforming them into more biodegradable compounds or completely removing them from water. Recent advances in the utilization of boron-doped diamond (BDD) electrodes for the anodic oxidation process in real wastewater have shown significant progress, shedding light on the characteristic properties of BDD electrodes and the degradation mechanism involved. This review offers an overview of the application of BDD electrodes for the mineralization of real wastewater.
CURRENT OPINION IN ELECTROCHEMISTRY
(2021)
Article
Environmental Sciences
Fatima Ezzahra Titchou, Hicham Zazou, Hanane Afanga, El Gaayda Jamila, Rachid Ait Akbour, Mohamed Hamdani, Mehmet A. Oturan
Summary: This study compared the efficiency of different treatment methods for removing Direct Red 23 from wastewater, finding varying removal effects in different electrolytes, with the use of a mixed supporting electrolyte leading to enhanced TOC removal efficiency.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Esra Kulaksiz, Berkant Kayan, Belgin Gozmen, Dimitrios Kalderis, Nihal Oturan, Mehmet A. Oturan
Summary: This study investigated the degradation of the antineoplastic agent 5-FU using various advanced oxidation processes, with the EF process being the most efficient. Different anodes in the EF process showed varying effects on the oxidative degradation of 5-FU, with the production of heterogeneous hydroxyl radicals playing a significant role at higher currents. Titanium dioxide-based photocatalytic oxidation and subcritical water oxidation processes showed lower degradation efficiency compared to the EF process. Overall, performance indicators such as degradation efficiency, mineralization power, cost, and energy consumption were considered in the comparison between the different treatment methods.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Applied
Qingyuan Zheng, Jack H. Williams, Scott Elgersma, Mick D. Mantle, Andrew J. Sederman, G. Leendert Bezemer, Constant M. Guedon, Lynn F. Gladden
Summary: In this study, a pilot-scale fixed-bed reactor compatible with NMR/MRI was developed for Fischer-Tropsch synthesis. Multiple magnetic resonance techniques were applied to quantitatively characterize different product species within catalyst pellets, providing valuable information for catalyst and reactor optimization.
Article
Chemistry, Applied
Lisa Ramisch, Sebastian Pfaff, Sabrina M. Gericke, Edvin Lundgren, Johan Zetterberg
Summary: We present a combination of optical operando techniques that allow simultaneous measurement of adsorbed species on catalyst surfaces, monitoring of surface oxide formation, and imaging of the gas phase above the catalyst surface. The experimental setup was validated by studying CO oxidation on Pd(100) at different pressures, revealing the effects of pressure on the heterogeneous catalytic reaction.
Article
Chemistry, Applied
Marta Paniagua, Gabriel Morales, Juan A. Melero, Daniel Garcia-Salgado
Summary: The influence of common impurities in levulinic acid on the catalytic performance of different acid catalysts for bio-jet fuel production was studied. It was found that furfural had the greatest detrimental effect on catalyst performance, while propyl-sulfonic acid-modified SBA-15 and sulfonic acid resin Amberlyst-70 showed good regeneration ability.
Article
Chemistry, Applied
Jesus Tapiador, Pedro Leo, Guillermo Calleja, Gisela Orcajo
Summary: This study presents a new MOF material, Zn-URJC-13, with acid and basic sites, permanent porosity, and high affinity to CO2 molecules. The Zn-URJC-13 catalyst exhibits efficient performance in CO2 cycloaddition reactions and can be reused multiple times.
Article
Chemistry, Applied
Dan Zhao, Vita A. Kondratenko, Dmitry E. Doronkin, Shanlei Han, Jan-Dierk Grunwaldt, Uwe Rodemerck, David Linke, Evgenii V. Kondratenko
Summary: This study demonstrates the potential of cheap and commercially available Zr or Ti-based supports and ZnO to serve as active and selective catalysts for propane dehydrogenation (PDH). The catalytically active species formed in situ under PDH conditions consist of isolated ZnOx. ZnOx on the surface of LaZrOx shows the highest rate of propene formation.
Article
Chemistry, Applied
Hanbyeol Kim, Jung Rae Kim, Young-Kwon Park, Jeong-Myeong Ha, Jungho Jae
Summary: In this study, metal phosphates were used as catalysts for biomass conversion to produce sustainable aromatics through DielsAlder cycloaddition reactions. The effects of synthesis method, activation method, and P/Ti molar ratio on the structure and acid properties of titanium phosphate catalysts were systematically studied. The mesoporous titanium phosphate catalyst synthesized by hydrothermal method at 180℃ for 12 h followed by ethanol refluxing at 60℃ for 24 h at a molar P/Ti ratio of 1 showed the highest surface area and acid site density.
Article
Chemistry, Applied
Yasin Khani, Sumin Pyo, Kwang-Eun Jeong, Chul-Ung Kim, Moonis Ali Khan, Byong-Hun Jeon, Kun-Yi Andrew Lin, Siyoung Q. Choi, Young-Kwon Park
Summary: A protonated form of Zeolite Socony Mobil-5 (H-ZSM-5) catalyst was synthesized through a hydrothermal method using different sources of silica. The effect of loading the catalyst with yttrium, samarium, and gadolinium on the acidic properties was investigated. Among the metal-loaded catalysts, the Sm/LHZ catalyst showed the best performance in the methanol to propylene conversion due to its high amount of weak and intermediate acid sites, while the Gd-LHZ catalyst increased the selectivity towards ethane and propane.
Article
Chemistry, Applied
Michael Franc, Ivana Cisarova, Jan Vesely
Summary: The present study investigates an enantioselective cyclization of enals with imidazolone derivatives catalyzed by a combination of achiral Pd(0) complex and chiral secondary amine. Corresponding spirocyclic imidazolones were produced in high yields with moderate diastereoselectivity and excellent enantioselectivity. The developed co-operative catalytic methodology provides a highly substituted spirocyclic scaffold with four stereogenic centers under mild conditions.
Article
Chemistry, Applied
Mauro Alvarez, Jennifer Cueto, David P. Serrano, Pablo Marin, Salvador Ordonez
Summary: This study focuses on improving the formulation and preparation methods of catalysts for the production of dimethyl carbonate. By using suitable catalyst preparation methods and copper salt precursors, the researchers successfully produced catalysts with optimal performance for dimethyl carbonate formation.
Article
Chemistry, Applied
Claudia J. Keijzer, Luc C. J. Smulders, Dennie Wezendonk, Jan Willem de Rijk, Petra E. de Jongh
Summary: This study investigates the catalytic behavior of alpha-alumina supported silver catalysts in the presence of chloride. It is found that the particle size of silver can affect the selectivity of the catalyst, but different strategies lead to different results. In this size range, the selectivity of ethylene oxide is correlated to the Ag : Al2O3 surface ratio.
Article
Chemistry, Applied
Takeshi Aihara, Wataru Aoki, Michikazu Hara, Keigo Kamata
Summary: The development of acid-base bifunctional catalysts is important for promoting specific chemical transformations. In this study, Ti-based perovskite oxides were synthesized and used as catalysts for two C-C bond-forming reactions (cyanosilylation and Knoevenagel condensation). The highly pure SrTiO3 nanoparticles with a high specific surface area exhibited the highest catalytic performance, and could be easily recovered and reused.
Article
Chemistry, Applied
Olga Gorlova, Petra Pribylova, Eliska Vyskocilova, Katerina Peroutkova, Jan Kohout, Iva Paterova
Summary: This study investigates the Baeyer-Villiger oxidation of beta-cyclocitral using tin-modified mixed oxides as catalysts. The optimal reaction conditions and the effects of various factors on the reaction course and selectivity were determined. The results show that tin-modified mixed oxides exhibit high activity and selectivity in the oxidation reaction.
Article
Chemistry, Applied
M. I. Avila, M. M. Alonso-Doncel, L. Briones, G. Gomez-Pozuelo, J. M. Escola, D. P. Serrano, A. Peral, J. A. Botas
Summary: The catalytic fast pyrolysis of lignin using ion-exchanged zeolite catalysts showed significant improvements in bio-oil quality and the production of aromatic hydrocarbons and oxygenated compounds.
Article
Chemistry, Applied
Enrico Catizzone, Giorgia Ferrarelli, Paolo Bruno, Girolamo Giordano, Massimo Migliori
Summary: The acid-catalysed alcohol conversion reaction is a promising route for de-fossilization strategies. Research on pure alcohol conversion and simultaneous dehydration of mixed alcohols have shown different product compositions, with the type and distribution of acid sites affecting the reaction mechanism.
Article
Chemistry, Applied
Alireza Ranjbari, Juho Kim, Jihee Yu, Jiyun Kim, Mireu Park, Nayoung Kim, Kristof Demeestere, Philippe M. Heynderickx
Summary: This study investigated a novel kinetic model for the adsorption and photocatalytic degradation of methyl orange using commercial ZnO and reduced ZnO photocatalysts. The results provided new insights into the interaction of catalysts with molecules of different charges and compared with a previous study on methylene blue. The presence of oxygen vacancies in ZnO and their effects on adsorption and photocatalytic degradation were analyzed, and the photocatalytic degradation rate of reduced ZnO was found to increase significantly.
